[G guardian] (Usable when both fighters' vanguards are grade 3 or greater, and the number of face up G guardians in your G zone is three or less)-Opponent Turn's Guard Step-[Choose a card with "Heal" from your hand, and discard it] Call this card to your (GC) from face down.[AUTO]:When this unit is placed on (GC), if the number of cards in your damage zone is more than or equal to the number of cards in your opponent's damage zone, this unit gets [Shield]+5000 until end of that battle.